111122122020020 has 96 divisors (see below), whose sum is σ = 236927095445376. Its totient is φ = 43773690124800.

The previous prime is 111122122019989. The next prime is 111122122020089. The reversal of 111122122020020 is 20020221221111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4965009230 + ... + 4965031610.

It is an arithmetic number, because the mean of its divisors is an integer number (2467990577556).

Almost surely, 2^{111122122020020} is an apocalyptic number.

111122122020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111122122020020 is an abundant number, since it is smaller than the sum of its proper divisors (125804973425356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111122122020020 is a wasteful number, since it uses less digits than its factorization.

111122122020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36081 (or 36079 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111122122020020 its reverse (20020221221111), we get a palindrome (131142343241131).

The spelling of 111122122020020 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-two million, twenty thousand, twenty".